The golden pheasant is a golden yellow strain that was selected and bred from rainbow trout's mutant species in Japan. After its introduction in 1996, it was named “Golden Stork†according to its body color characteristics. Calendula is a cold-water fish, the normal growth upper limit water temperature is 22 °C, there is no clear lower limit, the lower limit of the water temperature is close to 0 °C can still be a small amount of food, normal survival. It is delicious meat, nutritious, less thorn meat, high food value, is a collection of ornamental, sport fishing, food in one of the fine varieties, has now become China's eel industry following the rainbow trout after the second major breeding species. The golden pheasant can be bred in ponds, but it can also be stocked in reservoirs, lakes and rivers, especially when it is bred in ponds. It can be grown all year round. The yield per mu can reach 10,000 to 20,000 kilograms. . Now we introduce the high-efficiency aquaculture technology for ponds and ponds in Jinyi as follows: I. Pond construction Mountain streams, springs, groundwater, and reservoir bottom drainage can all be used as the water supply source for Jinxi ponds. Such water sources generally have water temperatures above 0°C in winter and 22°C in summer, dissolved oxygen in water bodies above 6 mg/l, and pH values ​​between 6.5 and 8, which are in line with the standards for aquaculture water use. The construction of ponds is based on the premise of no leakage and unobstructed flow of water. The terrain must have a certain gradient to facilitate the drainage and drainage, and at the same time, the difference in water is conducive to natural oxygenation. Each pond area is generally 100 square meters to 200 square meters, cement structure, rectangular, favorable feeding, management and control of fish diseases, and allows water to flow evenly throughout the pond. The inlet and outlet of the pond have two forms: one is equal to the width of the pond, the gate is from top to bottom, the entire section is kept water, this form is suitable for fish farms with large amount of water; the other is the width of the inlet only and the pool About 1/5 of the width, the width of the outlet is 1/2 of the width of the pool. At the same time, in order to prevent the wild fish from entering the pond and the fish to escape, a fish barrage should be installed at the inlet and outlet. There are two types of rearing ponds in parallel and in series, but it is better to use a tandem type, which is easy to manage and labor-saving. Second, the species of fish stocking fish should be neat specifications, swimming agile, physically strong, bright body color is golden yellow. The stocking density of fingerlings is constrained by factors such as the amount of water, water temperature, and dissolved oxygen in the water. Within the allowable range of breeding conditions, the stocking stock of fingerlings is directly proportional to the yield of adult fish. The specifications for stocking are based on the breeding time, water temperature, and the specifications of the plan to be put on the market. They are generally between 80 and 100 grams per tail. Practice has proved that the amount of water supply is 40 to 300 liters per second (the higher the temperature, the greater the amount of water supply), 150 to 200 fishes per square meter can be stocked. The larger the size, the smaller the stocking density. Before stocking, the pond should be fully exposed to the sun and completely disinfected with quicklime or bleach; fish species can be stocked with 2% to 3% of salt solution before they are stocked, and it is best to avoid running at high temperatures at noon. Third, feed feeding fish species in the initial period, the wild fish and livestock liver can be minced with meat grinder 2 to 3 times to make it into a paste, wiped on a thin wire tray, hung in the water, the amount of daily feeding From 6% to 8% of the fish's body weight, it is fed 3 times a day. Afterwards, it is gradually fed with artificial feed. The ratio of feed to animal and plant feed accounts for 50% each. Animal feedstuffs include Fish Meal, meat meal, small junk fish, silkworm cocoons, and internal organs of livestock and poultry. The plant feedstuffs include cake flour, bran, rice bran, and lettuce leaves. The particle size is palatability, usually 4 mm to 6 mm in diameter. It was fed twice a day and fed by a hand-sprinkling method. The amount fed was 2% to 3% of the total amount of fish. According to the weather, water temperature and the appetite of the fish, it is possible to control it flexibly. Do not feed too much, so as not to pollute the water. IV. Routine management The water for aquaculture must be clean and pollution-free. The fish pond should be regularly brushed at the bottom of the pond and the wall of the pond. It is best to set a barrage at a distance of 2m to 3m from the drainage port so that the dirt will precipitate between them and then be sucked away with a pipette to reduce the pollution to the pool below. . In order to ensure the high yield of the golden oysters, the management must first maintain enough water and sufficient dissolved oxygen content. To this end, additional oxygen-increasing equipment should be added to the fish ponds. If oxygen deficiency occurs, replenish them immediately. Secondly, the adult fish that has reached the food standard (with a tail weight of 200 g or more) must be fished and sold in time, and individuals with significant differences in growth should be selected and kept in separate ponds. V. Disease Prevention and Control Golden lice pond water aquaculture common disease is a vibriosis, mostly occurred in late spring and autumn. At the beginning of the disease, the base of the body surface and fins gradually darkened, and the epidermis collapsed to expose necrotic muscles. Prevention and treatment: Each kilogram of fish body weight is fed with 75 mg to 100 mg of sulfa drugs, fully mixed with feed and continuously fed for 5 days to 7 days. The second is hepatic steatosis, which is caused by incomplete nutrition or moldy deterioration of the feed. The diseased fish is dark in color, the liver is swollen, and it is drifting in the slow flow alone. It is not lively. Prevention: The diseased fish was found to be fed with high-quality feed immediately, reducing the amount of feed and increasing the vitamin content in the feed. The lighter fish can recover fully after 30 days, while those with severe illness cannot be saved.
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